Ouch. If "that instrument' Penguin is asking about below is what I'm cringing at, it's a bagpipe chanter being blown separately out of the bag. And I'm cringing because yes, i AM a piper, and I can't stand hearing the instrument abused like that!
I mean if it's an actual instrument at all and not just electronics, but that's what it sounds like. Gotta admit though, you really gotta be trying to make pipes sound THAT bad!!!
In response to below: that' s what I love about dark ambient (& most ambient music in general); it's absolutely timeless. Just imagine (if you were around at the time like I was) what music was popular back in 1984.....it's actually kind of mind-blowing. BTW: Dead Can Dance's first album was also out in 1984.